TY - JOUR AU - V. K. Romanko TI - Solvability of boundary value problems for higher order operator-differential equations JO - Differencialʹnye uravneniâ PY - 1978 SP - 1081 EP - 1092 VL - 14 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1978_14_6_a13/ LA - ru ID - DE_1978_14_6_a13 ER -